Certainly not. If I memorize a line of copyrighted code and then write it down in a different project, I have copied it. If an ML model does the same thing as m

Certainly not. If I memorize a line of copyrighted code and then write it down in a different project, I have copied it. If an ML model does the same thing as my brain - memorizing a line of code and writing it down elsewhere - it has also copied it. In neither case is that "fair use".